Home / 9,219.99-13,831.51-2,981.58

Finding the Fourth Proportional to 9,219.99, 13,831.51 and 2,981.58

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Solution

The fourth proportional to 9,219.99, 13,831.51 and 2,981.58 is: 4,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.99 : 13,831.51 = 2,981.58 : x
  2. Step 2: Convert to fraction form
    9,219.99/13,831.51 = 2,981.58/x
  3. Step 3: Cross multiply
    9,219.99x = 13,831.51 × 2,981.58
  4. Step 4: Simplify right side
    9,219.99x = 41,239,699.85
  5. Step 5: Solve for x
    x = 41,239,699.85/9,219.99
  6. Step 6: Final answer
    x = 4,472.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.